Genome-wide analysis; Comparative genomics; Bioinformatics; Genome evolution
Kolodziej Markus C, Singla Jyoti, Sánchez-Martín Javier, Zbinden Helen, Šimková Hana, Karafiátová Miroslava, Doležel Jaroslav, Gronnier Julien, Poretti Manuel, Glauser Gaétan, Zhu Wangsheng, Köster Philipp, Zipfel Cyril, Wicker Thomas, Krattinger Simon G, Keller Beat (2021), A membrane-bound ankyrin repeat protein confers race-specific leaf rust disease resistance in wheat., in
Nature communications, 12(1), 956-956.
PorettiManuel, PrazCoraline, MeileLukas, KälinCarol, SchaeferLuisa, SchläfliMichael, WidrigVictoria, Sanchez-ValletAndrea, WickerThomas, BourrasSalim (2020), Domestication of High-Copy Transposons Underlays the Wheat Small RNA Response to an Obligate Pathogen, in
Mol Biol Evol, 37(3), 839-848.
Müller Marion C, Praz Coraline R, Sotiropoulos Alexandros G, Menardo Fabrizio, Kunz Lukas, Schudel Seraina, Oberhänsli Simone, Poretti Manuel, Wehrli Andreas, Bourras Salim, Keller Beat, Wicker Thomas (2019), A chromosome-scale genome assembly reveals a highly dynamic effector repertoire of wheat powdery mildew., in
The New phytologist, 221(4), 2176-2189.
Background:There are three main mechanisms that are thought to lead to the emergence of novel genes: (i) gene duplication that is followed by re-organization and/or neo-functionalization, (ii) horizontal gene transfer from a different taxonomic group and (iii) de novo evolution from non-coding DNA. In all three evolutionary paths, transposable elements (TEs) and/or double-strand break repair play a role. These events can nowadays be studied precisely by means of comparative genomics. Thus, with approriate genomic resources, evolution of new genes can be tracked and described both in a quantitative and a qualitative way. Working hypotheses:(i) Gene duplication is largely driven by DSB repair. (ii) Many major plant-specific gene families were acquired early on through horizontal gene transfer from bacteria or other prokaryotes. (iii) Genuine de novo gene evolution can be detected through comparative analysis of genes from closely related species. Experimental design:(i) Evolution of novel genes through duplication will be studied by searching closely related rice genomes for recent events of gene duplications or translocations. (ii) Horizontal gene transfer from prokaryotes to plants will be identfied through the search for prokaryotic homologs of all major plant gene families and through identification of sequences of bacterial origin in genes that were annotated as Triticeae-specific. (iii) We plan to compare so-called low-confidence genes from barely and wheat and submit them to vigorous selection criteria in order to distinguish genuine Triticeae-specific genes from annotation artifacts.